3 files changed, 43 insertions, 22 deletions
diff --git a/pkgs/by-name/st/stamp/package.nix b/pkgs/by-name/st/stamp/package.nix
deleted file mode 100644
index 703f73e3..00000000
--- a/pkgs/by-name/st/stamp/package.nix
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  sysLib,
-  findutils,
-  fd,
-  reuse,
-  git,
-}:
-sysLib.writeShellScript {
-  name = "stamp";
-  src = ./stamp.sh;
-  generateCompletions = false;
-  keepPath = false;
-
-  dependencies = [
-    findutils
-    fd
-    reuse
-    git
-  ];
-}
diff --git a/pkgs/by-name/st/stamp/package.unstable.nix b/pkgs/by-name/st/stamp/package.unstable.nix
new file mode 100644
index 00000000..871d531c
--- /dev/null
+++ b/pkgs/by-name/st/stamp/package.unstable.nix
@@ -0,0 +1,29 @@
+# nixos-config - My current NixOS configuration
+#
+# Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de>
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+# This file is part of my nixos-config.
+#
+# You should have received a copy of the License along with this program.
+# If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
+{
+  writeShellApplication,
+  # Dependencies
+  coreutils,
+  fd,
+  git,
+  reuse,
+}:
+writeShellApplication {
+  name = "stamp";
+  text = builtins.readFile ./stamp.sh;
+  inheritPath = false;
+
+  runtimeInputs = [
+    coreutils
+    fd
+    git
+    reuse
+  ];
+}
diff --git a/pkgs/by-name/st/stamp/stamp.sh b/pkgs/by-name/st/stamp/stamp.sh
index 0aa6c281..5f17b2aa 100755
--- a/pkgs/by-name/st/stamp/stamp.sh
+++ b/pkgs/by-name/st/stamp/stamp.sh
@@ -1,7 +1,19 @@
 #!/usr/bin/env dash
 
-# shellcheck source=/dev/null
-SHELL_LIBRARY_VERSION="2.1.2" . %SHELL_LIBRARY_PATH
+# nixos-config - My current NixOS configuration
+#
+# Copyright (C) 2025 Benedikt Peetz <benedikt.peetz@b-peetz.de>
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+# This file is part of my nixos-config.
+#
+# You should have received a copy of the License along with this program.
+# If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
+
+die() {
+    echo "Error: $1"
+    exit 1
+}
 
 help() {
     cat <<EOF